A normal bar of soap can work well as a lubricant when applied to metal. Use soap on screws before you screw them into hardwood. You can also use soap to speed up a stubborn zipper. Run your handsaw blade over a bar of soap and it will cut through wood more easily. It also will speed up the runners on windows, sliding doors and drawers.
my problem is that the windows won't slide across I need to hint to get them to do that, then I can use the soap idea.